The dinosaur skeletons, found hidden in a museum collection in Mongolia, is an ancestor of the mighty tyrannosaurs.

Khankhuuluu mongoliensis lived roughly 86 million years ago and was an immediate precursor to the dinosaur lineage called tyrannosaurs ...

The fossils were first dug up in southeastern Mongolia in the early 1970s but at the time were identified as belonging to a different tyrannosaur, Alectrosaurus.

A newly discovered dinosaur from Mongolia, named Khankhuuluu mongoliensis, or "Dragon Prince," is believed to be a crucial ancestor of the Tyrannosaurus rex (T rex), shedding light on the T rex's ...

Old fossils dug up over 40 years ago were thought to belong to a T. rex, but new research suggests they are part of a different species completely.

The result is How to Survive History: a detailed, practical manual for surviving the greatest catastrophes and adventures in this planet’s history. It’s a how‑to for finding food, shelter, and warmth ...

Sue, one of the largest and best-preserved T. rex specimens ever found, is on display in the permanent collection at the Field Museum in Chicago, shown on April 1, 2014.

The T. rex displayed at New York City’s American Museum of Natural History had looked less impressive when it was discovered in Montana’s Hell Creek 13 years prior.

Old fossils dug up over 40 years ago were thought to belong to a T. rex, ... Scientists discovered a new dinosaur species, and it could reshape the history of T. rex's evolution.